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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Omanago Group
The Omanago volcano group (upper left) consists of a series of five lava domes in Nikko National Park. The highest dome is Omanago, located at the SE end of the complex. Mitsudake is the NW-most dome. The higher northern peak of the Mitsudake complex is out of view to the left, and the lower southern dome forms the low ridge behind the hot spring resort of Yunoko lake in the center of the photo. The peak on the right horizon is Nantaisan. Photo by Lee Siebert, 1964 (Smithsonian Institution).
Volcano Number:
283142
Volcano Name:
Omanago Group
Country:
Japan
Volcano Type:
Lava dome(s)
Last Eruption:
3050 BCE
Elevation:
2341m
Tectonic Setting:
Subduction zone / Continental crust (> 25 km)
Pop. within 5km:
698
Pop. within 10km:
16316
Pop. within 30km:
113236
Pop. within 100km:
10276159
Latitude:
36.8067
Longitude:
139.4756
Details
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The Omanago volcano group consists of a series of five closely spaced lava domes that were constructed north and NW of Nantai volcano in Nikko National Park. The highest of the dacitic domes is Omanago, which later erupted andesitic lavas. The Mitsudake dome, which overlooks the hot spring resort of Lake Yunoko, was radiocarbon dated at about 5,000 years ago. Mitsudake was constructed on a southerly dipping slope, so that the southern of its two flat-topped domes is lower, and is overlapped by sediments of the Senjogahara plain.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
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Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.
Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
Sorry. No data exist for this volcano in the UNAVCO database.
Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
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